The utility model discloses a sterilization system for a seat of an electric vehicle. The sterilization system comprises at least one UV (Ultraviolet) lamp mounted in the electric vehicle, wherein the power supply input end of the UV lamp is connected with a power supply, and the control signal input end of the UV lamp is connected with the remote control signal output end of a controller; when receiving a UV lamp turning-on signal of a remote controller, the controller can control the conduction of a power supply circuit of the UV lamp, so that the UV lamp starts to work. According to the sterilization system, bacteria in the electric vehicle can be killed by the UV lamp, the effect of keeping the inside of the vehicle clean is achieved.